Evaluation of possible positioning of devices in a low energy mesh network
Erik Eklund, Robert Jegerås · Chalmers Publication Library (Chalmers University of Technology) · 2016
This report deals with positioning between devices in a low energy mesh network.It uses established technologies such as Bluetooth Smart communication.With the increasing usage of IoT devices the demand for new applications also increases.One desirable application of Bluetooth communication is to extract the relative positions of devices in close proximity.The purpose of this thesis is to come up with a solution to this problem.The received signal strength will be used for the problem because electromagnetic waves decrease in energy the further it travels and can be used to determine the distance travelled.The reader will be presented with both theoretical and practical explanations for the solution.That includes the mathematical and physical considerations that had to be made.The reader will also be presented with the code written in C used for the solution.The results shows that the exact positions and distances are not very reliable however the relative positions of each device can still be extracted successfully.A discussion and proposed future work will be presented at the end of the thesis.